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MINOR: resolvers: Add function to change the srv status based on SRV resolution

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srvrq_update_srv_status() update the server status based on result of SRV
resolution. For now, it is only used from snr_update_srv_status() when
appropriate.
This commit is contained in:
Christopher Faulet 2021-03-11 18:03:21 +01:00
parent 51d5e3bda7
commit 5efdef24c1
2 changed files with 28 additions and 13 deletions
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1
include/haproxy/server.h
View File

@ -62,6 +62,7 @@ struct server *new_server(struct proxy *proxy);
/* functions related to server name resolution */
int srv_prepare_for_resolution(struct server *srv, const char *hostname);
int srvrq_update_srv_status(struct server *s, int has_no_ip);
int snr_update_srv_status(struct server *s, int has_no_ip);
int srv_set_fqdn(struct server *srv, const char *fqdn, int resolv_locked);
const char *srv_update_fqdn(struct server *server, const char *fqdn, const char *updater, int dns_locked);

40
src/server.c
View File

@ -2990,6 +2990,31 @@ out:
return msg->area;
}
/*
* update server status based on result of SRV resolution
* returns:
* 0 if server status is updated
* 1 if server status has not changed
*
* Must be called with the server lock held.
*/
int srvrq_update_srv_status(struct server *s, int has_no_ip)
{
if (!s->srvrq)
return 1;
/* since this server has an IP, it can go back in production */
if (has_no_ip == 0) {
srv_clr_admin_flag(s, SRV_ADMF_RMAINT);
return 1;
}
if (s->next_admin & SRV_ADMF_RMAINT)
return 1;
srv_set_admin_flag(s, SRV_ADMF_RMAINT, "entry removed from SRV record");
return 0;
}
/*
* update server status based on result of name resolution
@ -3006,19 +3031,8 @@ int snr_update_srv_status(struct server *s, int has_no_ip)
int exp;
/* If resolution is NULL we're dealing with SRV records Additional records */
if (resolution == NULL) {
/* since this server has an IP, it can go back in production */
if (has_no_ip == 0) {
srv_clr_admin_flag(s, SRV_ADMF_RMAINT);
return 1;
}
if (s->next_admin & SRV_ADMF_RMAINT)
return 1;
srv_set_admin_flag(s, SRV_ADMF_RMAINT, "entry removed from SRV record");
return 0;
}
if (resolution == NULL)
return srvrq_update_srv_status(s, has_no_ip);
switch (resolution->status) {
case RSLV_STATUS_NONE: